Skip to main content

Kai Miller: Changes in local cortical activity are revealed by a power law in the cortical potential spectrum

Movies Preview

movies
Kai Miller: Changes in local cortical activity are revealed by a power law in the cortical potential spectrum


Published 2008


Talk given by Kai Miller, University of Washington at the Redwood Center for Theoretical Neuroscience at UC-Berkeley on January 20, 2008.

Abstract:
I will begin by demonstrating how careful experimental technique reveals a power law of the form P~Af^-chi in the electrocortical potential spectrum with exponent chi=4.0 pm 0.1 above ~70Hz, and evidence for a power law with chi_{low}=2.0 pm 0.4 below this. During a simple finger flexion task, the potential spectrum is effectively decoupled into this power law and the alpha and beta rhythms. I will demonstrate that increases in the coefficient, A, of this power law (not the exponent) correspond to local cortical function and reveal discrete finger somatotopy. Finally, I will discuss some possible interpretations for the source and nature of these changes.


Run time 1.5 hours
Producer Redwood Center for Theoretical Neuroscience
Audio/Visual sound, color

comment
Reviews

There are no reviews yet. Be the first one to write a review.
SIMILAR ITEMS (based on metadata)
Community Video
by Redwood Center for Theoretical Neuroscience
movies
eye 366
favorite 0
comment 0
Community Video
by Redwood Center for Theoretical Neuroscience
movies
eye 255
favorite 0
comment 0
Community Video
movies
eye 215
favorite 0
comment 0
Community Video
movies
eye 323
favorite 0
comment 0
Community Video
by Redwood Center for Theoretical Neuroscience
movies
eye 349
favorite 0
comment 0
Community Video
by Redwood Center for Theoretical Neuroscience
movies
eye 497
favorite 1
comment 0
Community Video
movies
eye 208
favorite 0
comment 0
Community Video
by Redwood Center for Theoretical Neuroscience
movies
eye 612
favorite 0
comment 0
Community Video
by Redwood Center for Theoretical Neuroscience
movies
eye 313
favorite 0
comment 0
Community Video
by Redwood Center for Theoretical Neuroscience
movies
eye 643
favorite 0
comment 0